Fluid pressure sensing unit incorporating diaphragm deflection s

Details Fluid pressure sensing unit incorporating diaphragm deflection s Fluid pressure sensing unit incorporating diaphragm deflection s

1996-10-25

1998-05-19

Oen, William L.

Measuring and testing

Fluid pressure gauge

With protective separator

73718, G01L 700, G01L 912

Patent

active

057538204

ABSTRACT:
A sensing unit includes a re-usable portion which is isolated from system fluids and a disposable portion. The disposable portion includes an enclosure that defines an internal cavity with one wall of the enclosure being constituted by a flexible diaphragm that is exposed to operating pressure of the system. The re-usable portion has mounted therein a sensing array at a position adjacent to a non-system pressure side surface of the diaphragm. The sensing array includes a plurality of sensing elements which are arranged as radial inner and outer sets with each set being adapted to preferentially sense a deflection of a central portion of the diaphragm. An output signal representative of the fluid pressure in the fluid system is established based on a ratio of deflection signals from the sets of sensing elements. Preferably, the sensing elements constitute capacitive plates that have equally exposed surface areas.

REFERENCES:
patent: 2648328 (1953-08-01), Hathaway et al.
patent: 2796863 (1957-06-01), von Wittern
patent: 3215135 (1965-11-01), Franke
patent: 3572319 (1971-03-01), Bittner et al.
patent: 4226124 (1980-10-01), Kersten
patent: 4314480 (1982-02-01), Becker
patent: 4398542 (1983-08-01), Cunningham et al.
patent: 4581940 (1986-04-01), Merrick et al.
patent: 4683894 (1987-08-01), Kodama et al.
patent: 4741214 (1988-05-01), Vidmantas
patent: 4920972 (1990-05-01), Frank et al.
patent: 4974117 (1990-11-01), Irwin
patent: 5006952 (1991-04-01), Thomas
patent: 5165281 (1992-11-01), Bell
patent: 5392653 (1995-02-01), Zanger et al.

Affiliated with

Also associated with

Rating

Fluid pressure sensing unit incorporating diaphragm deflection s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid pressure sensing unit incorporating diaphragm deflection s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid pressure sensing unit incorporating diaphragm deflection s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1854462